musculoskeletal system

Question 1

define the muscoskeletal system

Answer 1

the musculoskeletal system gives your body structure, lets you move, and protects the internal organs. It can include bone, joints, muscles, cartilage and ligaments.

Question 2

what are the two divisions of the skeleton and what to they contain?

Answer 2

1. Axial skeleton - skull, spinal cord
2. Appendicular - limbs, girdle

Question 3

what are the main functions of bone?

Answer 3

• support the body
• protects the soft organs
• movement
• storage of mineral and salts
• blood cell formation

Question 4

what is osteoporosis?

Answer 4

is when the skeleton doesn’t get enough calcium, causing the bones to be unable to properly absorb calcium and the bones start to thin.

Question 5

what are joints?

Answer 5

when two bones come together

Question 6

what are the 3 types of joints and movement of each?

Answer 6

1. Fibrous - immovable (skull, jaw, pelvis)
2. Cartilaginous - slightly moveable (spine, ribs)
3. Synovial - freely moveable (hinge, pivot, saddle)

Question 7

define each type of muscle

Answer 7

1. Cardiac muscle - forms the heart, contracts to pump blood around the body, INVOLUNTARY movement.
2. skeletal muscle - connects the bone, allows movement, VOLUNTARY movement
3. Smooth muscle - controlled by the automatic nervous system, INVOLUNTARY movement, helps the lungs expand